Eating more greasy food always farts is considered to be caused by dietary factors, and may also be caused by indigestion, constipation, intestinal flora imbalance and other conditions. 1. Dietary factors: eating greasy food and eating a lot of gas-producing food, such as beans, sweet potatoes and so on, will lead to want to fart. 2. Indigestion: the gastrointestinal power of the patient is weakened in this kind of situation, resulting in the accumulation of food in the digestive tract, which is difficult to be discharged, and the food can produce gas under the action of digestive juices, leading to farting. 3. Constipation: eating greasy food often in daily life, lack of fresh vegetables, fruits and other foods rich in dietary fiber intake will lead to constipation, when constipation feces in the intestinal tract after the accumulation of a large amount of gas can be produced, causing farting. 4. Intestinal flora imbalance: the balance between microflora in the intestinal tract is disrupted, leading to the growth of a large number of gas-producing bacteria that can cause total farting after eating greasy food. If you have farting after eating greasy food, it is recommended that you go to the hospital if the symptoms persist.